Global Patent Index - EP 0884342 A1

EP 0884342 A1 19981216 - Resin for coating formation and method for producing the same

Title (en)

Resin for coating formation and method for producing the same

Title (de)

Harz für Beschichtungsbildung und Verfahren zu seiner Herstellung

Title (fr)

Résine pour la formation de revêtement et son procédé de fabrication

Publication

EP 0884342 A1 19981216 (EN)

Application

EP 98109890 A 19980529

Priority

  • JP 13970397 A 19970529
  • JP 13970497 A 19970529
  • JP 13970597 A 19970529
  • JP 13970697 A 19970529
  • JP 18795697 A 19970714
  • JP 31681997 A 19971118

Abstract (en)

A resin for coating formation which comprises a polyarylate comprising 2,2-bis(3-methyl-4-hydroxyphenyl)propane units and a divalent carboxylic acid component comprising 10 to 90 mol% of terephthalic acid units and 90 to 10 mol% of isophthalic acid units, having an inherent viscosity measured in 1,1,2,2-tetrachloroethane at a concentration of 1 g/dl at 25 DEG C of 0.85 or more, and having a carboxyl value of 20 mol/ton or less. Also disclosed is a process for producing the resin by interfacial polymerization, using a quaternary ammonium salt or a quaternary phosphonium salt having at least 3 alkyl groups each having at least 3 carbon atoms as a catalyst.

IPC 1-7

C08G 63/16; C08G 63/181; C08G 63/193; H01B 3/42; H01G 4/32; C08J 5/18; C09D 167/02

IPC 8 full level

C08G 63/193 (2006.01); C08G 63/79 (2006.01); C09D 167/03 (2006.01); H01G 4/20 (2006.01)

CPC (source: EP US)

C08G 63/193 (2013.01 - EP US); C08G 63/79 (2013.01 - EP US); C09D 167/03 (2013.01 - EP US); H01G 4/20 (2013.01 - EP US)

Citation (search report)

  • [X] US 3259816 A 19660705 - ARTHUR KATCHMAN
  • [DX] GB 901605 A 19620718 - GEVAERT PHOTO PROD NV
  • [A] EP 0245689 A2 19871119 - BAYER AG [DE]
  • [A] EP 0064972 A2 19821117 - ISOVOLTA [AT]
  • [X] CHEMICAL ABSTRACTS, vol. 119, no. 4, 26 July 1993, Columbus, Ohio, US; abstract no. 28853, YASUE, K. ET AL.: "Polyarylates and their manufacture" XP002079033 & JP H0543670 A 19930223 - UNITIKA LTD
  • [PXX] CHEMICAL ABSTRACTS, vol. 127, no. 4, 28 July 1997, Columbus, Ohio, US; abstract no. 51158, KISHIMOTO, S. ET AL.: "Polyarylates with high solubility to methylene chloride and good dielectric property" XP002079034 & JP H09136946 A 19970527 - UNITIKA LTD
  • [X] CHEMICAL ABSTRACTS, vol. 124, no. 20, 13 May 1996, Columbus, Ohio, US; abstract no. 262045, KISHIMOTO, S ET AL.: "Polyarylates with high transparency and low residual salts and their preparetion" XP002079035 & JP H0820634 A 19960123 - UNITIKA LTD

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0884342 A1 19981216; EP 0884342 B1 20030924; DE 69818348 D1 20031030; DE 69818348 T2 20040624; US 5902872 A 19990511

DOCDB simple family (application)

EP 98109890 A 19980529; DE 69818348 T 19980529; US 8510398 A 19980528